Improved machine for molding glass buttons



GQVIGNERON. MACHINE FOB MOLDING GLASS BUITQNS.

. ,Patented Apr. 19, 1870.

Mmmm;

CHARLES VIGNERON, Ol!" PROVIDENCE, RHODEISLAND.

Leners Pam: N 102,070, am: April 19, 1ero.

IMPROVE!) MACHINE PDR' HQLDING GLASS BUTTQNS.

The Schedule referred to in the Lauer. Patent and making part of the same.

To all whom. it may concern:

Be it known that I, CHARLES VLGNEBON, ofthe city and county of Providence, and State of Rhode Island, have invented an Improved 'Apparatus for Molding under Pressure; and I do hereby declare that the,foll'owing specification, taken in connection with the drawings making a part of the same, is a full, clear, and exact description thereof.

The apparatus is specially designed for use in molding glass ornaments for sleeve-buttons, studs, and other similar purposes.

Figure 1 4is a View in perspective, with a portion/of the mold cut away.

Figure 2 is a top view of the lower matrix-plate.

Figure 3 represents one of the articles molded by the apparatus.

A is a matrix-plate, in the face of which is sunk a sexies of matrices, a, of the form of the article to be made.

B is a top plate or flask-cover, which is fitted to cover the matrix-bed, and should be so arranged that it can be clamped to the latter.

In the center of the top plate is an opening, C, into which the molten glass is to be poured, and a piston, D, is arranged to fit nicely therein. This piston is 'worked by a lever, as shown, or in any other convenient way which will enable pressure to be applied to it.

Duets, b b, out either in the top plate or in the matrx-bed, as preferred, connect the central space C with each of the matrices.

E represents the bed-plate or base of the mold. Its upper surface is provided with an annular space or re-4 cess for the reception of the matrix-bed A.

' The two parts ofthe mold having been clamped together, the pistou is raised, and, while the glass which is poured into the mold is in plastic state, pressure is applied to the piston, and the glass is forced into the matrices. When cooled, the articles so molded can readily heA detached from the metal which fills the ducts, and be finished in the usual way.

What I claim as my invention, and desire to secure by Letters Patent, is y The combination of the bed-plate E and ask-cover B with the detachable matrix-bed A, and the piston D fitted to the flask-cover and operated by pressure, substantially as described.

CHARLES VIGNER-ON. Witnesses:

EDWARD C. AMES, OnvILLE PECKHAM. 

